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Wearable blind-guiding device based on wireless sensor network and vibration feedback

A technology of wireless sensor and vibration feedback, which is applied in the direction of devices that help people walk, physical therapy, ophthalmology treatment, etc. The effect of wearing complex problems, low power consumption, and easy wearing

Inactive Publication Date: 2012-08-15
SOUTHEAST UNIV
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Problems solved by technology

[0005] The problem to be solved by the present invention is: the obstacle avoidance effect of the existing blind guide device cannot meet the demand, the use is inconvenient, and it is easily affected by the use environment

Method used

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  • Wearable blind-guiding device based on wireless sensor network and vibration feedback
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  • Wearable blind-guiding device based on wireless sensor network and vibration feedback

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Embodiment Construction

[0022] The invention is a walking assistance system for visually impaired persons, including three parts: a head detection device, a waist detection device and a leg detection device, and the three parts perform data communication through a wireless sensor network. The waist detection device is a network gateway, and the head and leg detection devices are network nodes. The head detection device mainly detects obstacles and approaching people or objects in the four directions of front, rear, left, and right; detection in two directions; the leg detection device is divided into two thigh obstacle avoidance sub-devices and two calf obstacle avoidance sub-devices, and each device can detect obstacles in three directions: front, rear and outside of the legs, so that the whole system can be used. Carry out all-round detection around the human body, and the detection is completed by distance measuring sensors.

[0023] The head and leg detection device is mainly composed of four pa...

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Abstract

The invention discloses a wearable blind-guiding device based on wireless sensor network and vibration feedback, comprising a head detection device, a waist detection device and a leg detection device, wherein the detection devices conduct data communication by virtue of the wireless sensor network. By using the device, the technical defects and shortcomings of the prior art are overcome so as to provide the wearable blind-guiding device based on wireless sensor network and vibration feedback. The device can liberate hands of visual-impaired people during walking, realize omnibearing detection of obstacles around the visual-impaired people and correctly feed back the position and the height of the obstacles. Communication of various wearable devices is realized by the wireless sensor network, so that the problems of non-uniform feedback of the position of the obstacles by independent judgments and inconvenient wearing of bus control are solved to ensure walking safety of the blind.

Description

technical field [0001] The invention relates to a walking assist device for visually impaired persons, which is a wearable blind guide device based on a wireless sensor network and vibration feedback. Background technique [0002] In order to solve the inconvenience of walking for the visually impaired, especially the problem of avoiding obstacles on the road, currently widely used auxiliary systems are blind guide sticks and very few wearable blind guide aid systems. [0003] Guide sticks can be divided into traditional guide sticks and electronic guide sticks. Traditional blind guide sticks are simple in structure, just ordinary wooden sticks or sticks of other materials, and their main function is to detect fixed obstacles within 0.5m in front of them by constantly tapping the ground. Electronic blind guide sticks detect fixed and moving objects in front by adding ultrasonic probes, infrared probes or cameras. When an obstacle is found, a danger alarm is issued to the bl...

Claims

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Application Information

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IPC IPC(8): A61H3/06A61F9/08
Inventor 乔贵方吴涓宋光明孙洪涛张军宋爱国
Owner SOUTHEAST UNIV
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